Domain Name Service, a method of converting a textual doman name to an IP address

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301 views

Local DNS server access delays

Access to a local DNS server is always delayed by ~1 second. I enabled the DNS server on OS-X Lion and it does indeed work. However when I query it using 'dig' (or nslookup) there is a delay of ...
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2answers
3k views

How do I get rid of browser redirect malware?

I am using Mac OS X Leopard on a MacBook Pro. I must have been very careless at some point, since I managed to let some malware install in it. While browsing I get randomly redirected to different ...
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0answers
239 views

Lion Server - DNS crashing

Every now and then (once per week?), my Mac Mini (2011, 8GB RAM i5) running Lion Server, stops the DNS server bringing my network to a grinding halt. The only way I have found to get it to restart is ...
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1answer
730 views

DNS Problem with my Macbook Pro

I have a problem with my Macbook Pro. I suspend it and if I should open it up and the wifi is connected and all looks pretty well. But I have no connection with my DNS Server. Other devices works ...
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1answer
320 views

Internet page not loading, ping not working but host www.example.com return an IP

Sorry I'm being vague because I don't even know where the problem can be. Yesterday I was using the internet just fine. Today on the same wifi router and on another 3G connection, I couldn't access ...
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1answer
399 views

What is OS X's equivalent of Linux's NSS?

Anyone familiar with the internals of Linux knows about NSS; it's the subsystem that services, like gethostname() and such, delegate to. The code that actually makes DNS queries or reads /etc/passwd, ...
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2answers
3k views

Can I set up domain filtering on an Airport Extreme?

I'm wondering if it is possible to set up domain filtering on an Airport Extreme based home network. Specifically, I'd like to block just rad.msn.com, and I need to do that at the network level.
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0answers
80 views

Why opening a ssh connection to Lion is taking too long?

Why is SSH taking too long to open when I SSH to Lion. I have to wait ~30s to see the Password prompt. The DNS is working on the Lion server.
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1answer
956 views

Lion Server DHCP randomly loses settings and reverts to defaults

I’ve been trying to set up Lion Server on a Mac Pro with it acting as the router/gateway/firewall/DNS/NAT and DHCP. I’ve been trying to setup an internal-only network named mycompany.something. After ...
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2answers
660 views

Unable to revert changes to hosts file in OS X Lion

I edited the hosts file and added: 10.0.0.1 devsys.crossreader.net Later I commented out the entry: #10.0.0.1 devsys.crossreader.net When I ping or browse to devsys.crossreader.net the returning ...
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1answer
418 views

DNS: Search Domains not working correctly?

I am running OSX Lion. I've looked all over the web for solutions to the issue I'm having and can't find a fix. I've found several entries where uses are trying to resolve custom_hostname.dev (etc, ...
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11answers
54k views

DNS not resolving on Mac OS

Some of my coworkers are having troubles on their Macs - DNS resolution does not work under Mac OS. They're running Snow Leopard 10.6.8. They can use DNS in a Windows 7 virtual machine (VMware Fusion ...
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1answer
2k views

How to set custom DNS entry for a particular wifi connection

Is there a way to set custom DNS settings for a single wifi connection without affecting other connections? I use my laptop at home and work. When at work I need to type in an IP address of a local ...
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1answer
120 views

How to resolve network issue or DNS to access web page on Snow Leopard Server?

I have my network setup like as follows: internet > router 1 > ethernet ports > switch > router 2 I have a Mac OS X Snow Leopard Server connected to "router 1", but it is so slow when accessing a ...
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5answers
12k views

DNS lookups fail with e.g. `ping`, but work with `host`

I'm using pfSense 2.0rc3, and I've set it up as a DNS forwarder and enabled "Register DHCP leases in DNS forwarder" and what I understand are all the appropriate settings to get DNS server for local ...
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1answer
761 views

OS X assumes hostname of other network computer: how to prevent this?

I just came across a strange quirck: I use my MacBook Pro in the office. Every computer is assigned their IP addresses by a DHCP server. It seems to be the case now, however, that my OS X changed my ...
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1answer
1k views

What are the domains of the iTunes & Software Update CDNs?

Background info: the various iTunes stores (and I think Software Update) use the a CDN to deliver all those jigabits of data. Google DNS can mess with the speed of these CDNs. I like using Google ...
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4answers
9k views

How can I quickly change DNS server

I often like to use a non-network specific DNS server (like Google's public DNS 8.8.8.8). However, many public wi-fi locations won't load their "terms of service, click here" page during the ...
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1answer
608 views

Is it possible to bypass a proxy when the proxy settings are set to Auto Proxy Config?

I've set up Automatic Proxy Configuration (PAC) in OSX Snow Leopard to point to a URL. I've also filled out the "Bypass proxy settings for these Hosts & Domains" box because I want to skip the ...
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0answers
217 views

DNS gone after wakeup

I'm having problems with the DNS resolution after a wakeup from sleep. The system I'm running is Mac OS X Lion 10.7, and I am properly connected to my Wifi. When I issue a ping google.com in the ...
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1answer
889 views

How do you access a subdomain on localhost with VMWare Fusion on a Mac?

I am able to access localhost on a Mac through Windows XP on VMWare Fusion by using my Mac username like this: http://username.local:3000/ But how do I do that with a subdomain, something like ...
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1answer
1k views

Macbook can't resolve any domain names

I have a 13" Macbook running Snow Leopard 10.6.6 which is unable to go to any URL on either my office or hotel networks. I have no proxy or firewall enabled on the computer - and have connected to ...
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1answer
12k views

Multiple IP addresses for same host name in /private/etc/hosts?

I have a corporate mail account (exchange 2007) that uses a self-signed SSL certificate. No matter what I do, Mail always complains about this when I connect. If I look at the details it always says ...
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1answer
1k views

Mac doesn't recognize hosts on local network

I have a Linux server in my cupboard. My Windows machines can connect to it via its hostname. I have never configured any DNS server; all I did was assign the Linux box a name when I installed Ubuntu ...
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0answers
271 views

iMac running Snow Leopard won't resolve DNS

Having problems with an iMac that I bought today. It's a 21", 2ghz Dual Core with 4GB ram. I'm connecting to my router via ethernet, and I can load up my remote websites and servers using the ip ...
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1answer
222 views

Reason for perpetual dynamic DNS updates?

(Crossposted from Serverfault) I'm using dynamic DNS (the "adult" version from RFC 2136, not à la DynDNS), and for a while now I've been seeing my laptops with MacOS 10.6.x churning out updates about ...
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2answers
534 views

How do I set up DynDNS on my MacBook?

I want to create a host name that points to my MacBook dynamically, so I can have a chance to take back the control if it was stolen. I opened ssh and vnc, but I have no idea how to find my machine. ...
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1answer
75 views

How to reach websites that have failed while offline?

When I try to open a website when my connection is down or while my modem is starting up, my Mac flags this url as unreachable. When the connection is finally open and internet available, I still ...
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2answers
438 views

iPad and iPod virus?

Every now and then my iPad or iPod touch will redirect my to a particular site in Safari. Could this be malware of sorts that has crept on to my iMac and then my iOS devices? I don't think it's a ...
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2answers
2k views

Why do local network hostnames resolve only in certain cases?

I have a linksys router which runs "tomato" Linux and serves as the local DNS server. It runs dnsmasq. I recently upgraded from OS X 10.4 to 10.6. Since then, resolution of hostnames on my local ...
9
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2answers
6k views

How do I flush the DNS cache on a OS X 10.6 machine?

Trying to flush the local DNS cache. How is this done on Snow Leopard? Using System Preferences and using the terminal?